Y \ X
1980
1981
1982
1983
1984
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
11940
11939
11938
11937
11936
11935
11934
11933
11932
11931
11930
11929
11928
11927
11926
11925
11924
11923
11922
11921
11920